(feat) writes logic for creating n of m multisig wallet in bitcoinUtilities.js
(test) adds tests for multi sig wallet creation function in bitcoinUtilities
(feats) adds specs to withdraw from a multisig wallet
(feat) adds withdraw function on bitcoin utilities to empty wallet
(fix) updates package.json with bitcoin utility specs + dependencies
Merge pull request #97 from kayellpeee/feat/multiSig

Feat/multi sig